$titlebar-center-width: 50%;
$titlebar-side-width: (100% - $titlebar-center-width) / 2;
$titlebar-background: #eee;
$titlebar-color: #000;
$titlebar-border: 1px solid #ccc;
$titlebar-padding: $global-padding;
$titlebar-item-classes: (
  center: 'center',
  left: 'left',
  right: 'right',
  title: 'title',
); 